Apparatus for separating sulfur from ores.



flu. 635,574. Patented Oct. 24, I899.

. J. B. MCCABE. APPARATUS FOR SEPARATING SULFUR FROM (IRES.-

(Application filed Feb. 24, 1897.

(No Model.)

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' UNITED STATES PATENT OFFICE.

JAMES B. MCCABE, OF BUFFALO, NEW YORK.

APPARATUS FOR SEPARATING SULFUR FROM ORES.

SPECIFICATION forming part of Letters Patent No. 635,574, dated October24, 1899.

- 1 Application filed February 24, 1897. Serial No. 624,776. (No model.)I

T0 on whom it may concern:

Be it known that 1, JAMES B. McCABE, of Bufialo, in the county of Erieand State of New York, have invented a new and Improved Apparatus forSeparating Sulfur from Ores, of which the following is a full, clear,and exact description.

The object of the invention is to provide a new andim proved apparatusfor treating ores containing sulphur, to separate the latter from theprecious metals, notably gold, in a very simple and economical manner.

The invention consists in an apparatus of special construction andhereinafter more fully shown and described, and pointed out in theclaims.

Reference is to be had to the accompanying drawing, forming a part ofthis specification, in which the figure represents a sectional sideelevation of the apparatus.

The improved apparatus shown in the drawing is provided with asuitably-constructed boiler A, supporting at its bottom a dischargepipeB, having a valve B, which is opened from time to time to discharge theliquid sulphur from the boiler A, as hereinafter more fully described.Within the boiler Aand separated from the walls thereof is arranged-acylinder 0, having its rim formed of a perforated material, so as to actas a sieve. The solid heads of the cylinder are fastened to a shaft D,journaled in suitable bearings E, se-

cured to the ends of the boiler A, as shown. One end of the shaft D ismade hollow, as atD, to form an inlet for the ore to be treated, the

. outer end of this part of the shaft being provided with a valve D anda feed-hopper F.

Y The inner end of this hollow portion of the shaft opens into thecylinder C, so that the material to be treated and fed into the hop}perF passes directlyinto the cylinder 0. The other end D of the shaft Dis likewise made hollow, but is separated from the end D, and a branchpipe D extends from the inner end of the hollow shaft D to within ashort distance of the rim of the cylinder 0. The outer end of this shaftpart D is provided with a valve D and carries a pulley G, connected by abelt with suitable machinery for imparting a rotary motion to the shaftD and to the cylinder 0, carried by the said shaft. Into one end of theboiler A leads a water-supply pipe H, connected with a suitablewater-supply, and a steam-pipe I, connected with a suitablesteam-supply, so that the boiler A of the cylinder O can be completelyfilled with water and heated by the steam entering the boiler by thepipe I. As the water is confined within the said boiler it can bereadily heated, say, up to 350, to insure the ready melting of thesulphur contained in the ore introduced into the cylinder 0 through thehollow shaft end D previously mentioned.

Now it is evident that the material passed into the cylinder 0 can besubjected to a rolling motion by revolving the cylinder, so that thesaid material comes in contactvwith the heated water to cause a completemelting of all the sulphur contained in the ore. The agitation of theore not only facilitates the separation of the sulphur from the ore bybringing the particles thereof into contact with" the heated liquid, butit also prevents the melted sulphur from forming into pools in the massof ore, and thereby causes a complete separation of the sulphur from theore. As soon as the sulphur is meltedit passes through the meshes of thecylinder-rim, owing to the sulphur being of a higher specific gravitythan the water, and flows to and settles in the bottom of the boiler A,to be discharged therefrom from time to time through the outlet-pipe B.The material, freed from the sulphur,can be readilydischarged throughadditional pressure may be supplied through the steam-pipe J, having avalve J and connected with a suitable source of steam-supply. The boilerA is also provided with the usual safety-valve K and pressure-gage L,

' thermometer N, and Water-gage O to indicate the height of the water inthe boiler, the teinperature of the water, and the pressure thereof.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. An apparatus for separating sulphur fromores, comprising a boiler adapted to contain a heated liquid, and aperforated ore-cylinder mounted to revolve in the boiler and havinghollow trunnions forming inlet and outlet, the outlet-trunnion extendingnearly to the center of the cylinder and having a lateral outlet,substantially as described.

2. An apparatus for separating sulphur from ores, comprising a boileradapted to contain a highly-heated liquid, and a revoluble perforatedcylinder having a discharge-outlet extending inwardly to about thetransverse center of the cylinder and then laterally toward the rim ofthe said cylinder, substantially as and for the purpose set forth.

3. An apparatus for separating sulphur from ores, comprising a boileradapted to contain a heated liquid, a revoluble perforated ore-cylindermounted in the boiler and having hollow trunnions, one of which servesas an inlet and the other as an outlet, and a pipe leading from the saidoutlet to within a short distance of the rim of the cylinder,substantially as described.

4. An apparatus for separating sulphur from ores, comprising a boilerprovided with an outlet in its bottom, a revoluble perforatedore-cylinder mounted in the boiler, an oreinlet projecting into one endof the cylinder, and an angular outlet leading from the other end ofsaid cylinder, the vertical member of said outlet extending nearly tothe rim of the cylinder, substantially as described.

5. In an apparatus for separating sulphur from ores, the combinationwith a barrelshaped boiler having a discharge-opening in its bottom atabout the center, of a barrelshaped cylinder having a perforated rim andhollow trunnions by which it is mounted in the boiler, one of thetrunnions serving as an inlet and the other as an outlet, and a pipeleading from the outlet to within a short distance of the rim of thecylinder, substantially as described.

6. In an apparatus for separating sulphur from ores, the combinationwith a boiler having a discharge-opening in its bottom, a shaft mountedin the boiler and having hollow ends projecting out through the ends ofthe boiler, a cylinder secured to the shaft and having a perforated rim,and a pipe secured to the shaft and communicating with one of the hollowends thereof,sa-id pipe extending to within a short distance of the rimof the cylinder, substantially as herein shown and described.

' JAMES B. MCGABE. lVitnesses:

DILWORTH M. SILVER, BARTHOLOMEW MoOABE.

